Pre-glassing method of producing homogeneous sintered zno...

Details Pre-glassing method of producing homogeneous sintered zno... Pre-glassing method of producing homogeneous sintered zno...

H - Electricity

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H01B 1/02 (2006.01) C04B 35/453 (2006.01) H01C 7/112 (2006.01)

Patent

CA 1100749

46,760 A PRE-GLASSING METHOD OF PRODUCING HOMOGENEOUS SINTERED ZnO NON-LINEAR RESISTORS ABSTRACT OF THE DISCLOSURE A method of making a homogeneous sintered body, which can exhibit non-linear V-I characteristics, comprises the steps of: (1) forming a single phase, chemically homo- geneous glass, from a mixture of oxides containing at least Bi2O3, which is effective to cause non-linearity within a ZnO ceramic body, (2) mixing 2.5 wt.% to 40 wt.% of the single phase, chemically homogeneous Bi2O3 type glass, with 60 wt.% to 97.5 wt.% of ZnO particles, to form a uniform mixture, (3) pressing the glass-ZnO mixture, to form a consolidated body, and (4) sintering the pressed body, to form a ceramic body consisting of ZnO particles and a chemically homogeneous insulating layer formed from the Bi2O3 type glass coating the ZnO particles and bonding the ZnO particles together.

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